package com.changgou.goods.service.impl;

import com.alibaba.fastjson.JSON;
import com.changgou.goods.dao.BrandMapper;
import com.changgou.goods.dao.CategoryMapper;
import com.changgou.goods.dao.SkuMapper;
import com.changgou.goods.dao.SpuMapper;
import com.changgou.goods.service.SkuService;
import com.changgou.goods.service.SpuService;
import com.changgou.pojo.*;
import com.changgou.util.IdWorker;
import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import tk.mybatis.mapper.entity.Example;

import javax.persistence.Id;
import javax.xml.crypto.Data;
import java.util.Date;
import java.util.List;
import java.util.Map;

@Service
public class SpuServiceImpl implements SpuService {

    @Autowired
    private CategoryMapper categoryMapper;

    @Autowired
    private SpuMapper spuMapper;

    @Autowired
    private SkuMapper skuMapper;

    @Autowired
    private BrandMapper brandMapper;

    @Autowired
    private IdWorker idWorker;
    /**
     * 查询全部列表
     * @return
     */
    @Override
    public List<Spu> findAll() {
        return spuMapper.selectAll();
    }

    /**
     * 根据ID查询
     * @param id
     * @return
     */
    @Override
    public Spu findById(String id){
        return  spuMapper.selectByPrimaryKey(id);
    }


    /**
     * 增加
     * @param spu
     */
    @Override
    public void add(Spu spu){
        spuMapper.insert(spu);
    }


    /**
     * 修改
     * @param spu
     */
    @Override
    public void update(Spu spu){
        spuMapper.updateByPrimaryKey(spu);
    }

    /**
     * 删除
     * @param id
     */
    @Override
    public void delete(String id){
        Spu spu = spuMapper.selectByPrimaryKey(id);
        if ("1".equals(spu.getIsDelete())) {
            spuMapper.deleteByPrimaryKey(id);
        } else {
            throw new RuntimeException("请先逻辑删除");
        }
    }



    /**
     * 条件查询
     * @param searchMap
     * @return
     */
    @Override
    public List<Spu> findList(Map<String, Object> searchMap){
        Example example = createExample(searchMap);
        return spuMapper.selectByExample(example);
    }

    /**
     * 分页查询
     * @param page
     * @param size
     * @return
     */
    @Override
    public Page<Spu> findPage(int page, int size){
        PageHelper.startPage(page,size);
        return (Page<Spu>)spuMapper.selectAll();
    }

    /**
     * 条件+分页查询
     * @param searchMap 查询条件
     * @param page 页码
     * @param size 页大小
     * @return 分页结果
     */
    @Override
    public Page<Spu> findPage(Map<String,Object> searchMap, int page, int size){
        PageHelper.startPage(page,size);
        Example example = createExample(searchMap);
        return (Page<Spu>)spuMapper.selectByExample(example);
    }
    /**
     * 保存商品 SPU+SKU列表
     * @param goods 商品组合实体类
     */
    @Transactional
    @Override
    public void add(Goods goods) {
        //生成spuId
        long spuId = idWorker.nextId();
        //spuId放入SPU对象中
        goods.getSpu().setId(String.valueOf(spuId));
        //添加保存SPU数据
        spuMapper.insertSelective(goods.getSpu());

        //保存sku集合数据到数据库
        saveSkuList(goods);
    }
    /**
     * @Method update
     * @Author ANG.YU
     * @Version  1.0
     * @Description
     * @param goods
     * @Return void
     * @Exception
     * @Date 2019-09-29 19:57
     */
    @Override
    public void update(Goods goods) {
        Spu spu = goods.getSpu();
        spuMapper.updateByPrimaryKeySelective(spu);
        updateSkuList(goods);
    }

    @Override
    public void audit(String id) {
        Spu spu = spuMapper.selectByPrimaryKey(id);
        String isDelete = spu.getIsDelete();
        if ("1".equals(isDelete)) {
            throw new RuntimeException("商品已删除，无法上架");
        }
        spu.setIsMarketable("1");
        spu.setStatus("1");
        spu.setId(id);
        spuMapper.updateByPrimaryKeySelective(spu);
    }

    @Override
    public void pull(String id) {
        Spu spu = spuMapper.selectByPrimaryKey(id);
        if ("1".equals(spu.getIsDelete())) {
            throw new RuntimeException("商品已删除，无法下架");
        }
        spu.setId(id);
        spu.setIsMarketable("0");
        spuMapper.updateByPrimaryKeySelective(spu);
    }

    @Override
    public void put(String id) {
        Spu spu = spuMapper.selectByPrimaryKey(id);
        if ("0".equals(spu.getStatus())) {
            throw new RuntimeException("审核未通过，无法上架");
        }
        spu.setId(id);
        spu.setIsMarketable("1");
        spuMapper.updateByPrimaryKeySelective(spu);
    }

    @Override
    public void deletelogic(String id) {
        Spu spu = new Spu();
        spu.setId(id);
        spu.setIsDelete("1");
        spuMapper.updateByPrimaryKeySelective(spu);
    }

    @Override
    public void restore(String id) {
        Spu spu = new Spu();
        spu.setId(id);
        spu.setIsDelete("0");
        spuMapper.updateByPrimaryKeySelective(spu);
    }


    private void updateSkuList(Goods goods) {
        List<Sku> skuList = goods.getSkuList();
        for (Sku sku : skuList) {
            skuMapper.updateByPrimaryKeySelective(sku);
        }
    }

    /**
     * 保存sku列表
     * @param goods
     */
    private void saveSkuList(Goods goods){
        //获取spu对象
        Spu spu = goods.getSpu();
        //当前日期
        Date date = new Date();
        //获取品牌对象
        Brand brand = brandMapper.selectByPrimaryKey(spu.getBrandId());
        //获取分类对象
        Category category = categoryMapper.selectByPrimaryKey(spu.getCategory3Id());
        //获取sku集合对象
        List<Sku> skuList = goods.getSkuList();
        if (skuList != null) {
            for (Sku sku : skuList) {
                //设置sku主键ID
                sku.setId(String.valueOf(idWorker.nextId()));
                //设置sku规格
                if (sku.getSpec() == null || "".equals(sku.getSpec())) {
                    sku.setSpec("{}");
                }
                //设置sku名称(商品名称 + 规格)
                String name = spu.getName();
                //将规格json字符串转换成Map
                Map<String, String> specMap = JSON.parseObject(sku.getSpec(), Map.class);
                if (specMap != null && specMap.size() > 0) {
                    for(String value : specMap.values()){
                        name += " "+ value;
                    }
                }

                sku.setName(name);//名称
                sku.setSpuId(spu.getId());//设置spu的ID
                sku.setCreateTime(date);//创建日期
                sku.setUpdateTime(date);//修改日期
                sku.setCategoryId(category.getId());//商品分类ID
                sku.setCategoryName(category.getName());//商品分类名称
                sku.setBrandName(brand.getName());//品牌名称
                skuMapper.insertSelective(sku);//插入sku表数据
            }
        }
    }



    /**
     * 构建查询对象
     * @param searchMap
     * @return
     */
    private Example createExample(Map<String, Object> searchMap){
        Example example=new Example(Spu.class);
        Example.Criteria criteria = example.createCriteria();
        if(searchMap!=null){
            // 主键
            if(searchMap.get("id")!=null && !"".equals(searchMap.get("id"))){
                criteria.andLike("id","%"+searchMap.get("id")+"%");
           	}
            // 货号
            if(searchMap.get("sn")!=null && !"".equals(searchMap.get("sn"))){
                criteria.andLike("sn","%"+searchMap.get("sn")+"%");
           	}
            // SPU名
            if(searchMap.get("name")!=null && !"".equals(searchMap.get("name"))){
                criteria.andLike("name","%"+searchMap.get("name")+"%");
           	}
            // 副标题
            if(searchMap.get("caption")!=null && !"".equals(searchMap.get("caption"))){
                criteria.andLike("caption","%"+searchMap.get("caption")+"%");
           	}
            // 图片
            if(searchMap.get("image")!=null && !"".equals(searchMap.get("image"))){
                criteria.andLike("image","%"+searchMap.get("image")+"%");
           	}
            // 图片列表
            if(searchMap.get("images")!=null && !"".equals(searchMap.get("images"))){
                criteria.andLike("images","%"+searchMap.get("images")+"%");
           	}
            // 售后服务
            if(searchMap.get("sale_service")!=null && !"".equals(searchMap.get("sale_service"))){
                criteria.andLike("sale_service","%"+searchMap.get("sale_service")+"%");
           	}
            // 介绍
            if(searchMap.get("introduction")!=null && !"".equals(searchMap.get("introduction"))){
                criteria.andLike("introduction","%"+searchMap.get("introduction")+"%");
           	}
            // 规格列表
            if(searchMap.get("spec_items")!=null && !"".equals(searchMap.get("spec_items"))){
                criteria.andLike("spec_items","%"+searchMap.get("spec_items")+"%");
           	}
            // 参数列表
            if(searchMap.get("para_items")!=null && !"".equals(searchMap.get("para_items"))){
                criteria.andLike("para_items","%"+searchMap.get("para_items")+"%");
           	}
            // 是否上架
            if(searchMap.get("is_marketable")!=null && !"".equals(searchMap.get("is_marketable"))){
                criteria.andLike("is_marketable","%"+searchMap.get("is_marketable")+"%");
           	}
            // 是否启用规格
            if(searchMap.get("is_enable_spec")!=null && !"".equals(searchMap.get("is_enable_spec"))){
                criteria.andLike("is_enable_spec","%"+searchMap.get("is_enable_spec")+"%");
           	}
            // 是否删除
            if(searchMap.get("is_delete")!=null && !"".equals(searchMap.get("is_delete"))){
                criteria.andLike("is_delete","%"+searchMap.get("is_delete")+"%");
           	}
            // 审核状态
            if(searchMap.get("status")!=null && !"".equals(searchMap.get("status"))){
                criteria.andLike("status","%"+searchMap.get("status")+"%");
           	}

            // 品牌ID
            if(searchMap.get("brandId")!=null ){
                criteria.andEqualTo("brandId",searchMap.get("brandId"));
            }
            // 一级分类
            if(searchMap.get("category1Id")!=null ){
                criteria.andEqualTo("category1Id",searchMap.get("category1Id"));
            }
            // 二级分类
            if(searchMap.get("category2Id")!=null ){
                criteria.andEqualTo("category2Id",searchMap.get("category2Id"));
            }
            // 三级分类
            if(searchMap.get("category3Id")!=null ){
                criteria.andEqualTo("category3Id",searchMap.get("category3Id"));
            }
            // 模板ID
            if(searchMap.get("templateId")!=null ){
                criteria.andEqualTo("templateId",searchMap.get("templateId"));
            }
            // 运费模板id
            if(searchMap.get("freightId")!=null ){
                criteria.andEqualTo("freightId",searchMap.get("freightId"));
            }
            // 销量
            if(searchMap.get("saleNum")!=null ){
                criteria.andEqualTo("saleNum",searchMap.get("saleNum"));
            }
            // 评论数
            if(searchMap.get("commentNum")!=null ){
                criteria.andEqualTo("commentNum",searchMap.get("commentNum"));
            }

        }
        return example;
    }

}
